How to setup speeds with abs value

Open Source Routing Engine
1

Hi,

I’m trying to figure out how to set speeds on graph hopper. I already saw topic on speed factor but it’s not what I want. What I really want is to say that higway as an avg speed of 120km/h and change speeds for other categories as well. Is it possible to do this? How?

Thank you in advance
Miriam

2

The most user friendly way to do this are custom profiles. Take a look here: https://github.com/graphhopper/graphhopper/blob/master/docs/core/profiles.md#custom-profiles
But note that custom profiles have changed a lot on master since the 2.0 release, so make sure you are reading the right version of this document.

If all you want to do is change the speed on a few types of roads (e.g. for cars) and you are vaguely familiar with Java programming, you could also adjust defaultSpeedMap in CarFlagEncoder.java.

1 Like
3

Hi,

I thought there was an easier way to configure different speeds. I understand that with CH, when we change speeds everything must be generated again. But when not working with contractions it should be easier.

Thank you for your answer :slight_smile:

I’ll try with yalm.

Cheers

4

Well it is :slight_smile: This is what the custom profiles are for. However, you have to setup the import for custom profiles.

5

:slight_smile: ok, thank you for your help.

6

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